I was recently asked by a student in my intermediate micro class about whether she should take a course in macroeconomics. Her concern was that she hadn't found the information in her introductory macro class to be... well... interesting. I tried to explain that there is more to macro economics than what she read in her introductory textbook and encouraged her to look into taking an intermediate macro class.
Below is a recent piece by Narayana Kocherlakota documenting his thoughts on macroeconomics. I thought the last point he makes is particularly germane to the discussion I had with my student.